<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			function foo1(e) {

				console.log(e)


				console.log(e.key)
				console.log(e.code)
				if (e.ctrlKey && e.shiftKey && e.altKey) {
					alert("你刚才按住了ctrl+shift+alt")
				}
			}


			document.onkeydown = foo1;
		</script>
	</body>
</html>